Making yourself a priority is not something that should have guilt attached to it. It is not an act of selfishness, it is quite the opposite really
It usually feels like selfishness when you let people get to you. I love this coz I can relate to it.
Self-love is still the greatest.
I read from the 12 rules of life by Jordan Peterson that it's pretty easy to remember to take care of your dog than to take care of ourselves. We worry about others health while neglecting ours coz we want to seem selfless.
It's an important realization to know that you also need the care.